Asphalt shingles can be built on top, but can not be laid directly. The basic laying conditions of asphalt shingles are the slopes of the roof,

Q:In the terrace covered with a steel roof, glass wall of the house, the top with resin tile or asphalt tiles

There are also new types of insulation materials, the price is not expensive, but due to the lack of national standard quality varies, and some also contain formaldehyde and other harmful odor, mainly industrial and mining enterprises to use.

Q:Asphalt tile and ordinary cement tile which is good

Cement tile: heavy not suitable for high-rise buildings, especially when the rain is more heavy, a long time there are security risks, not suitable for the slope of more than 60 degrees of the roof, the advantages of low cost

Q:Asphalt tile purchase is not really the more expensive the better

You find online color stone metal tile, the use of high years, the construction of convenient, beautiful three-dimensional sense of strong,

Second, the basic requirements of the grassroots level: 1, concrete base must be 1: 2 cement mortar leveling trowel, flatness control in ± 5 mm. If you lay the waterproof layer or insulation layer, should be completed first.